== sanity test 398n: test append with parallel DIO ======= 00:17:34 (1790741854) 8+0 records in 8+0 records out 67108864 bytes (67 MB, 64 MiB) copied, 4.68309 s, 14.3 MB/s 8+0 records in 8+0 records out 67108864 bytes (67 MB, 64 MiB) copied, 5.23932 s, 12.8 MB/s